Author 
Topic 

CandaceK
Junior Member
USA
4 Posts 
Posted  09/02/2007 : 22:23:48

Question: A computer Consulting firm presently has bids out on three projects. Let Ai = {awarded project i}, for i = 1,2,3, and suppose that P(A1)=.22, P(A2)=.25,P(A3)=.28 P(A1A2)=.11 P(A1A3)=.05 P(A2A3)=.07 P(A1A2A3)=.01
1)A1A2=.36 2)A1'A2'=(A1A2)' =.64 3)A1A2A3=.22+.25+.28.11.05.07+.01 =.53 4)A1'A2'A3'= .47 5)A1'A2'A3 = ? 6)A1'A2'A3 =?



royhaas
Moderator
USA
3059 Posts 
Posted  09/03/2007 : 14:57:32

5) (A1'A2'A3)'=A1A2A3' 6) First complete 5), then use the rule for (A1'A2')A3. 


CandaceK
Junior Member
USA
4 Posts 
Posted  09/03/2007 : 17:47:47

quote: Originally posted by royhaas
5) (A1'A2'A3)'=A1A2A3' 6) First complete 5), then use the rule for (A1'A2')A3.
How did you get (A1'A2'A3)' from A1' A2'A3? 


royhaas
Moderator
USA
3059 Posts 
Posted  09/04/2007 : 17:23:32

Look at 5) again; then look at what I wrote. It's the complement of 5), which you should be able to compute from the givens. 



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